Linux-asm-samples for ( Education And Research )

Minimal Linux syscall samples for SOC training, RE beginners, CTF players, and low‑level developers. Pure syscalls — no libc.

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Purpose

This repository provides clean, minimalistic x86_64 Linux assembly samples using raw syscalls. Suitable for:

• SOC detection labs
• malware analysis training
• red‑team research
• CTF and syscall learning
• developers studying Linux ABI

All samples are safe and use only basic syscalls (open, read, write, socket, connect, bind, etc.).

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Included Samples

File I/O

• read_file.asm
• write_file.asm

Networking

• connect.asm
• send.asm
• recv.asm
• reverse_shell.asm
• bind_listen_accept.asm

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Build

NASM + LD:

nasm -f elf64 sample.asm -o sample.o ld sample.o -o sample ./sample

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Testing Guide

Test connect / send / recv / reverse shell

Terminal A: nc -lvp 4444

Terminal B: ./sample

Test bind_listen_accept

Terminal A: ./bind_listen_accept

Terminal B: nc 127.0.0.1 4444

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Disclaimer

All samples are for educational and research purposes only. This repository does not provide or promote malware. Everything here demonstrates syscall behavior in a controlled environment.